VACATION OWNERSHIP NOTES RECEIVABLE - Schedule of Composition of Vacation Ownership Notes Receivable Balances, Net of Reserves (Details) - USD ($) $ in Millions	Sep. 30, 2026	Dec. 31, 2025
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable, net	$ 2,676	$ 2,565
Securitized
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable, net	2,191	1,900
Non-securitized
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable, net	485	665
Eligible for securitization
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable, net	83	152
Not eligible for securitization
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable, net	402	513
Originated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable, net	2,633	2,503
Originated \| Securitized
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable, net	2,154	1,843
Originated \| Non-securitized
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable, net	479	660
Originated \| Eligible for securitization
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable, net	83	152
Originated \| Not eligible for securitization
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable, net	396	508
Acquired
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable, net	43	62
Acquired \| Securitized
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable, net	37	57
Acquired \| Non-securitized
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable, net	6	5
Acquired \| Eligible for securitization
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable, net	0	0
Acquired \| Not eligible for securitization
Accounts, Notes, Loans and Financing Receivable [Line Items]
Vacation ownership notes receivable, net	$ 6	$ 5

- Definition

Amortized cost, after allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease.

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